120-Degree Conducting Control Using Hall Sensors; Control Specifications - Renesas RAJ306102 User Manual

RAJ306102 RSSK User's Manual
3.2

120-degree Conducting Control Using Hall Sensors

3.2.1

Control Specifications

The 120-degree conducting control using Hall sensors is a method that controls the motor by switching the
energized phase according to the Hall signal.
Table 3-1 shows the control specifications.
For details of the specifics of the program, please refer to the Application Note "120-degree conducting
control of permanent magnetic synchronous motor (Implementation) (R18AN0062EJ)" of RAJ306102.
Table 3-1 Basic Specifications of 120-degree Conducting Control Using Hall Sensors Software
Item
Control method
Motor rotation start/stop
Position detection of rotor
magnetic pole
Input voltage
Main clock frequency
Carrier frequency (PWM)
Dead time
Control cycle
Rotational speed control
range
Optimization
Processing stops for
protection
R12UZ0130EJ0100 Rev.1.00
Nov 1, 2023
Content
120-degree conducting method (chopping upper arm)
Determined depending on the level of SW101 ("High": rotation start "Low":
stop) or input from Renesas Motor Workbench
Hall effect sensor: Position detection based on interruption of signal from Hall
effect sensors (every 60 degrees)
When position of rotor is detected, PWM duty and conducting pattern are set
at same time.
DC 24[V]
CPU clock: f 32[MHz]
CLK
TRD clock: f 64[MHz]
HOCO
20[kHz]
2[μs]
Speed PI control: every 1[ms]
Hall effect sensor control mode: 530[rpm] to 3200[rpm]
CW and CCW are supported
Default
Disables the motor control signal output (six outputs), under any of the
following conditions.
1. Inverter bus voltage exceeds 28[V] (monitored per 1[ms])
2. Inverter bus voltage is less than 15[V] (monitored per 1[ms])
3. Rotational speed exceeds 3900[rpm] (monitored per 1[ms])
4. Hall effect sensor interruptions are not detected for 200[ms].
5. Detection of unexpected output voltage pattern
6. Detection of overcurrent by external circuit (low-level input)
7. Fault detection of the Smart Gate Driver
Chapter 3. Usage
(Note,1)
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